Home / 18,380.61-27,363.05-18,271.26

Finding the Fourth Proportional to 18,380.61, 27,363.05 and 18,271.26

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Solution

The fourth proportional to 18,380.61, 27,363.05 and 18,271.26 is: 27,200.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,380.61 : 27,363.05 = 18,271.26 : x
  2. Step 2: Convert to fraction form
    18,380.61/27,363.05 = 18,271.26/x
  3. Step 3: Cross multiply
    18,380.61x = 27,363.05 × 18,271.26
  4. Step 4: Simplify right side
    18,380.61x = 499,957,400.94
  5. Step 5: Solve for x
    x = 499,957,400.94/18,380.61
  6. Step 6: Final answer
    x = 27,200.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.